| RHP10242 | Plan and section of a new road from Fushiebridge (Fussie-Bridge) to Fountainhall, Midlothian | 1800 |
| RHP10250 | Plan of a new road from Heriot House Toll to Torquhan (Turquin), Midlothian | Aug 1814 |
| RHP10251 | Plan and estimate of proposed line of road from near Fushiebridge by Foul Slush to Dewars Gill, Midlothian | 1826 |
| RHP10251/1 | Plan of proposed line of road from near Fushiebridge by Foul Slush to Dewars Gill, Midlothian | 10 Apr 1826 |
| RHP10251/2 | Estimate of proposed line of road from near Fushiebridge by Foul Slush to Dewars Gill, Midlothian | 10 Apr 1826 |
| RHP10252 | Plan of lines of road from Fushiebridge and from Hangingshaw Inn to Dewar Gill, Midlothian | 1826 |
| RHP10253 | Plan and section of line of road from the Gala Water Road at Hangingshaw Inn to Garvald Shank, Midlothian | 1830 |
| RHP17322 | Plans and elevation (2) of North British Railway bridge no.5 over the Gala Water near its junction with the Heriot Water. | c 1847 |
| RHP27921 | 1. Architectural plan of buildings at HERIOT Station destroyed by fire and proposed to be restored by the LONDON AND NORTH EASTERN RAILWAY: 1938 2. Memorandum re above | 1938 |
| RHP28882 | Plan of bridge no. 4 near Stagebank (North British Railway). | 1850 |
| RHP39547 | General arrangement drawing of steelwork supporting capstan in signal cabin at Heriot Level Crossing (British Railways). | 1960 |
| RHP39567 | Plan and section of level crossing at Heriot to be renewed by British Railways. | 1960 |
| RHP39614 | Plan and elevation of bridge no 4 near Stagebank (North British Railway). | 1862 |
| RHP39615 | Plan of bridge no 7 at north and end of Crookston Slip (North British Railway). | 1862 |
| RHP39616 | Plan, section and elevation of cast iron drainage pipes under line near [Stagebank] OR [Crookston Slip] [North British Railway]. | 1862 |
| RHP42270 | Architectural drawing of Nettlingflat House, Heriot, Midlothian | 1849 |
| RHP42271 | Architectural drawing of Nettlingflat House, Heriot, Midlothian | [1849] |
| RHP42272 | Architectural drawing of Nettlingflat steading, Heriot, Midlothian | 1849 |
| RHP42273 | Architectural drawing of Nettlingflat steading, Heriot, Midlothian | [19th century] |
| RHP42275 | Architectural drawing of farm offices to be built at Hangingshaw and Crookston Mains | 1857 |
| RHP75052 | Ordnance Survey 6 inch plan (Midlothian, sheet XV.SW) coloured and marked to show types of farming and farm boundaries | [1944-1955] |
| RHP75061 | 8Ordnance Survey 6 inch plan (Midlothian, sheet XX.NE) coloured and marked to show types of farming and farm boundaries | [1944-1955] |
| RHP75062 | Ordnance Survey 6 inch plan (Midlothian, sheet XX.SW; Peeblesshire, part of sheet VI.SE) coloured and marked to show types of farming and farm boundaries | [1944-1955] |
| RHP75063 | Ordnance Survey 6 inch plan (Midlothian, sheet XX.SE) coloured and marked to show types of farming and farm boundaries | [1944-1955] |
| RHP75064 | Ordnance Survey 6 inch plan (Midlothian, sheet XXI.NW) coloured and marked to show types of farming and farm boundaries | [1944-1955] |
| RHP75066 | Ordnance Survey 6 inch plan (Midlothian, sheet XXI.SW) coloured and marked to show types of farming and farm boundaries | [1944-1955] |
| RHP75068 | Ordnance Survey 6 inch plan (Midlothian, sheets XXIIA.NE, XXII.NW & SW) coloured and marked to show type of farming and farm boundaries | [1944-1955] |
| RHP75069 | Ordnance Survey 6 inch plan (Midlothian, sheet XXII.NE; Peeblesshire, part of sheet X) coloured and marked to show types of farming and farm boundaries | [1944-1955] |
| RHP75070 | Ordnance Survey 6 inch plan (Midlothian, sheet XXII.SE; Peeblesshire, part of sheet X; Selkirkshire, part of sheet I) coloured and marked to show type of farming and farm boundaries | [1944-1955] |
| RHP75071 | 3Ordnance Survey 6 inch plan (Midlothian, sheet XXIII.NW) coloured and marked to show types of farming and farm boundaries | [1944-1955] |
| RHP77146 | Ordnance Survey 6 inch plan (Peeblesshire, sheet X.NW; Midlothian, part of sheet XXII) coloured and marked to show type of farming and farm boundary | [1944-1954] |
| RHP83946 | Plan of commonty between Brothershiels and Nettlingflat, Midlothian | Early 19th century |
| RHP83947 | Plan of grass parks between Hangingshaw and Kirklandhill and Sandyknowe, Heriot, Midlothian | 1836 |
| RHP83949 | Plan of land proposed to be acquired for erection of a gate lodge at Heriot Station level crossing (North British Railway) | [1872] |
| RHP83951 | Plan showing proposed widening of road at Heriot Station, Midlothian | 13 Nov 1885 |
| RHP83953 | Plan of new Gala Water road between Craigend and Fushiebridge Inn, Midlothian | 1 Sep 1818 |
| RHP83958 | Architectural drawing of stables [at Hangingshaw, Heriot, Midlothian] | [Early 19th century] |
| RHP94083 | Plan of proposed extension of Heriot churchyard, marked to show lairs there, annotated | Apr 1941 |
| RHP95860 | Ordnance Survey 6 inch plan (Midlothian, sheet XV.SW) coloured and marked to show classification of land | [1944-1955] |
| RHP95867 | Ordnance Survey 6 inch plan (Midlothian, sheet XX.NE) coloured and marked to show classification of land | [1944-1955] |
| RHP95868 | Ordnance Survey 6 inch plan (Midlothian, sheet XX.SW) coloured and marked to show classification of land | [1944-1955] |
| RHP95869 | Ordnance Survey 6 inch plan (Midlothian, sheet XX.SE) coloured and marked to show classification of land | [1944-1955] |
| RHP95870 | Ordnance Survey 6 inch plan (Midlothian, sheet XXI.NW) coloured and marked to show classification of land | [1944-1955] |
| RHP95872 | Ordnance Survey 6 inch plan (Midlothian, sheet XXI.SW) coloured and marked to show classification of land | [1944-1955] |
| RHP95874 | Ordnance Survey 6 inch plan (Midlothian, sheet XXIII.NW) coloured and marked to show classification of land | [1944-1955] |
| RHP143323 | Plan of railway line at Falahill, Midlothian | 13 Feb 1962 |